- #1
tigerlili
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Homework Statement
a ball is thrown up onto a roof, landing 3.90 s later at height h = 18.0 m above the release level. The ball's path just before landing is angled at θ = 67.0° with the roof. (a) Find the horizontal distance d it travels. (Hint: One way is to reverse the motion, as if on videotape.) What are the (b) magnitude and (c) angle (relative to the horizontal) of the ball's initial velocit
Homework Equations
i thought it was just v0x=vcostheta
v0y=vsintheta
and kinematics
The Attempt at a Solution
i really have no idea how to start this one